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fbdev: s6e8ax0: avoid unused function warnings

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commit b54729b6ce upstream.

The s6e8ax0 suspend/resume functions are hidden inside of an #ifdef
when CONFIG_PM is set to avoid unused function warnings, but they
call some other functions that nothing else calls, and we get warnings
about those:

drivers/video/fbdev/exynos/s6e8ax0.c:449:13: error: 's6e8ax0_sleep_in' defined but not used [-Werror=unused-function]
drivers/video/fbdev/exynos/s6e8ax0.c:485:13: error: 's6e8ax0_display_off' defined but not used [-Werror=unused-function]

This marks the PM functions as __maybe_unused so the compiler can
silently drop them when they are not referenced.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Arnd Bergmann 2016-01-25 16:04:03 +01:00 committed by Greg Kroah-Hartman
parent 25bce31b08
commit 12ec0529db
1 changed files with 4 additions and 9 deletions
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13
drivers/video/fbdev/exynos/s6e8ax0.c
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@ -829,8 +829,7 @@ static int s6e8ax0_probe(struct mipi_dsim_lcd_device *dsim_dev)
return 0;
}
#ifdef CONFIG_PM
static int s6e8ax0_suspend(struct mipi_dsim_lcd_device *dsim_dev)
static int __maybe_unused s6e8ax0_suspend(struct mipi_dsim_lcd_device *dsim_dev)
{
struct s6e8ax0 *lcd = dev_get_drvdata(&dsim_dev->dev);
@ -843,7 +842,7 @@ static int s6e8ax0_suspend(struct mipi_dsim_lcd_device *dsim_dev)
return 0;
}
static int s6e8ax0_resume(struct mipi_dsim_lcd_device *dsim_dev)
static int __maybe_unused s6e8ax0_resume(struct mipi_dsim_lcd_device *dsim_dev)
{
struct s6e8ax0 *lcd = dev_get_drvdata(&dsim_dev->dev);
@ -855,10 +854,6 @@ static int s6e8ax0_resume(struct mipi_dsim_lcd_device *dsim_dev)
return 0;
}
#else
#define s6e8ax0_suspend NULL
#define s6e8ax0_resume NULL
#endif
static struct mipi_dsim_lcd_driver s6e8ax0_dsim_ddi_driver = {
.name = "s6e8ax0",
@ -867,8 +862,8 @@ static struct mipi_dsim_lcd_driver s6e8ax0_dsim_ddi_driver = {
.power_on = s6e8ax0_power_on,
.set_sequence = s6e8ax0_set_sequence,
.probe = s6e8ax0_probe,
.suspend = s6e8ax0_suspend,
.resume = s6e8ax0_resume,
.suspend = IS_ENABLED(CONFIG_PM) ? s6e8ax0_suspend : NULL,
.resume = IS_ENABLED(CONFIG_PM) ? s6e8ax0_resume : NULL,
};
static int s6e8ax0_init(void)